发明名称 |
LOW PROBABILITY OF INTERCEPT COHERENT RADAR ALTIMETER |
摘要 |
A radar altimeter for determining altitude of an air vehicle with respect to ground comprises a digital sequencer for digitally modulating a first signal . A transmitter coupled to the digital sequencer transmits a radar signal including the modulated first signal toward the ground. A receiver receives a reflected radar signal from the ground. The received radar signal includes t he modulated first signal. A digitizer coupled to the receiver generates digita l samples of the modulated first signal. A digital signal processor coupled to the digitizer receives digital samples of the modulated first signal from th e digitizer, demodulates the received digital samples, processes the demodulat ed digital samples and outputs altitude data based on the demodulated digital samples.
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申请公布号 |
CA2412907(A1) |
申请公布日期 |
2001.12.20 |
申请号 |
CA20012412907 |
申请日期 |
2001.06.11 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
PETRICH, CURTIS J.;KEUPER, JOHN H.;HAGER, JAMES R. |
分类号 |
G01S7/03;G01S7/40;G01S13/02;G01S13/26;G01S13/88;(IPC1-7):G01S13/26 |
主分类号 |
G01S7/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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